diff --git a/CHANGES.rst b/CHANGES.rst
index 1d40379..c15df6d 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -1,6 +1,11 @@
 Changes
 =======
 
+0.4.1 (2024-06-03)
+------------------
+
+- Introduce pyproject.toml to replace the old way of describing the project and specifying build dependencies.
+
 0.4.0 (2023-11-30)
 ------------------